100632979 has 8 divisors (see below), whose sum is σ = 106926480. Its totient is φ = 94708768.

The previous prime is 100632977. The next prime is 100632989. The reversal of 100632979 is 979236001.

It is not a de Polignac number, because 100632979 - 2¹ = 100632977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100632971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5329 + ... + 15154.

It is an arithmetic number, because the mean of its divisors is an integer number (13365810).

Almost surely, 2^100632979 is an apocalyptic number.

100632979 is a deficient number, since it is larger than the sum of its proper divisors (6293501).

100632979 is an frugal number, since it uses more digits than its factorization.

100632979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20534 (or 20500 counting only the distinct ones).

The product of its (nonzero) digits is 20412, while the sum is 37.

The square root of 100632979 is about 10031.5990250807. The cubic root of 100632979 is about 465.1361670053.

The spelling of 100632979 in words is "one hundred million, six hundred thirty-two thousand, nine hundred seventy-nine".